Even without the potion they are two normal bisexual girls like all anime and Japanese Girls. ;)
Side note according to Ted TV Japanese were a bisexual culture in Edo period that the period right before the West butted in. Now that all in private with hints public exception the poor working stiffs working to death.
Base +6, Giangiotto -7, Soldier A -6, Mabifica -6, Hello my name is +6, Ahegaosensei -6, Hyranyon19 -3, a faggot -6, letoplel +19, lo wei -6